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Blue Anthelia Overgrowth
4/2/16
SPS Anthelia Question, hlth and comp resp. 3/29/15
MASSIVE TANK CRASH !!! Typical Xeniid die-off, cascade event
2/20/14 All My Polyps are Closed!!?
Anomalous Xeniid crash 5/24/10
Re: Heteroxenia sp. &
Caulastrea sp., allelo f' 3/11/10
Xenia / Zoanthids: Natural Ways
To Prevent Spreading 9/9/09 Cespitularia and Heteroxenia...
hlth., comp. 8/3/09 Xenia and Zoanthid Control --
5/1/09 Xenia outbreak 01/21/09 Hey guys, It appears that one of the live rocks that I purchased is starting to spring up with xenia's. I am not sure what type they are but they are possibly the type that pulsate. I have noticed that they are starting to spread onto other rocks. I really don't want these taking over my tank. Do you have any suggestions what I can do to rectify this situation? Your help would be greatly appreciated <Couple of things to try first... 1) turning over the rock such that the xenia are buried (with *no* light). If you can't do that 2) try using a Dremel saw or hammer and screwdriver to chisel out the parts of the rock with the xenia. I would try these first before resulting to more drastic measures.> Thanks Brian Dietiker <De nada, Sara M.> Anything that eats xenia? 11/15/08 Hi. I am looking for a fish that will reliably eat pulsing xenia. Preferably something that won't get much more than 5-6". <Mmm...> I'm growing xenia in my fuge and I have an extra tank in the fish room. Was thinking I'd get something that eats it, instead of just pruning. Any ideas? So far, I've not come across anything reliable that fits the bill. Thanks! Joel <Best to prune... carefully. Please read here: http://wetwebmedia.com/xeniidcompfaqs.htm Bob Fenner> Coral, Xenia & Lemonpeel 8/26/08 <Hi G. Mich here today> I would like to have a coral that will grow (quickly, if possible) over my rocks. I was hoping a Xenia would do the trick <Likely would.> but my Lemonpeel Dwarf Angelfish ate it in 2 days. <Or maybe not...> So I was wondering if there is a coral out there that would cover my rocks and not be eaten by the Lemonpeel; <I'm wondering if there is a particular reason why your rocks covered with coral as opposed to Coralline Algae.> perhaps it would have toxic traits that would deter him. <There are many noxious corals.> I have a Star Polyp that he does not touch. <Green Star Polyp was one of the first that comes to mind. GSP are highly noxious.> It doubled in size and attached to the rock <And can be hard to rid of as well.> but seems to have halted its growth. <Interesting... GPS are often the allelopathic winners.> I also have a torch coral that he nips on sometimes but won't eat; <Another highly allelopathic coral.> this specimen however doesn't seem to grow or multiply. <I'm wondering the size of you tank, if you're running carbon, what other corals you have in the tank? A little reading here: http://www.wetwebmedia.com/chemFiltrMar.htm > Most of my live rocks are vertical and it's quite difficult to get a coral to stay on them. <There are ways... if this is desired...> I would prefer a species to attach itself naturally and grow over the rocks yet the Lemonpeel is making it difficult. <Xenia can be prolific, but too tasty for your Lemonpeel. Anthelia is in the same order and may be worth trying. GSP comes to mind but can be a nuisance and can be rather toxic, so I would be cautious with this coral. Zoanthids might be a nice addition but may not do well with the GSP and the Euphyllia, but may be the best option. More reading here: http://www.wetwebmedia.com/xeniidarts.htm http://www.wetwebmedia.com/caryophyllids.htm http://www.wetwebmedia.com/zoanthid.htm > Thanks, G. <Welcome, Mich> Phyllodesmium to rid Xenia? 6/26/08 Crew - Phyllodesmium is a common Nudibranch predator on a variety of soft corals, and often mimic their preferred prey. From my research, the Nudi that resembles Xenia will eat it exclusively. My friend has one to eradicate the Xenia in his tank... which it's doing a good job of. As soon as it's completed the task he suggested I use it for the same to get rid of my Xenia - which I want to do. Your thoughts are very much appreciated on this tactic to rid my tank of Xenia. <Worth trying... I have seen this genus of Nudi on other than pulsing soft coral species in the wild. Bob Fenner>
Removing Xenia from Acrylic Tank Wall 1/2/08 Hi friends, <Hello.> I have quite a bit of Xenia. Most of the ones on rock are not any problem per se, but several colonies started climbing the side and front walls of my 80gallon Hex tank. <That?#8364;™s Xenia for you!> Unfortunately, I thought this was cool a few months ago, but of course I procrastinated doing anything about it and now need to address the problem. In the past I've placed rock next to colonies in order to trade w/friends, but the ones on the wall are not exactly close to anything they could adhere to.. and since the tank is acrylic, anything that scrapes the acrylic would do more harm than good. Can you make any suggested approaches to try? <Many times Xenia is easy enough to just pick off the sides of a tank. If that fails you can gently scrape it off with a credit card or acrylic safe scraper, again gently.> My last resort will be to buy lots of magnetic bars used to clean tanks and wait for them to hop on. <This could work; I would try simply pulling them off first. You will be surprised how easy Xenia (usually) comes off. Best regards, Scott V.>
Zoanthid Health Issues/Coral Compatibility ?#8364;" 6/8/07 Hey guys. I don't want to take up too much of your time with what would seem like a relatively easy question to answer. I have a 10 gallon nano - reef aquarium which has been set up for several months. I am utilizing a 200 GPH Marineland Bio Wheel Filter, 40 Watt PC 10,000K/Actinic light fixture, and an additional self-rotating powerhead for additional circulation. Water parameters are as follows: Ammonia-0 Nitrite-0 Nitrate-testing @ around 0 ppm SG-1.023 <This is not bad, but we usually recommend 1.025-1.026 to mirror the sea.> Temp-78 I have been adding several corals over the past several months, and trying to avoid a "coral garden." <Me too!> I initially added 3 Hairy Mushroom Polyps and some Green Star Polyps, and Yellow Polyps. Later I added a small 3 head Frogspawn, and several colonies of Zoanthids, all of which did very well initially. Just last week, I was virtually given a beautiful Xenia elongata, which I placed high on the left corner of the tank in order to give it substantial room. <Xenia is so cool!> The Xenia is already attaching and slowly spreading in the strong current, but now there seems to be a problem with my largest Zoanthid colony, which is relatively close to the Xenia and is now almost half closed. <Hmmm.> Everything else in the aquarium is doing very well, including the 2 other Zoanthid colonies. I didn't think that Xenia was very aggressive in terms of detrimental physical contact with other corals, or with chemical secretions, or am I mis-informed? <Xenia does not sting, but does secrete some potentially annoying chemicals. You will see when it is time to prune it, Xenia is very stinky when irritated!!> To be complete, I have 6 red-legged hermit crabs and 1 Citron Goby about 3/4 inch. <Neat!> For all intents and purposes, I consider my tank to be full, and will not be adding anything else. <You get a Gold Star!!> Water changes are 15% every week with RO. <Very nice.> Thanks so much for your help. <I would move the Xenia to a spot with less current (less agitation may slow down its secretions ?#8364;" and it pulses more when there is not much current), increase carbon use, and/or increase water changes since you don?#8364;™t have a skimmer. I find my Zoanthids do best on the other end of the tank (75 g) from the Xenia. 10 g is close quarters. If they don?#8364;™t perk up with these changes, you may need to remove one or the other. I find the mushrooms are not affected by the Xenia, but the Xenia does not get too close to the mushrooms.> Scott <Cheers, Alex> Please please help me to remove xenia from my tank... okay... read 2/26/07 Hi, <Adam> I have a huge amount of xenia (pulse coral) in my tank, its taken over, I try stripping it off the rock and giving it to my local shop but its just taking over, nothing stops it. Is there any critter, fish, treatment, chemical or something that will stop this stuff or remove it totally from my tanks? Please?! Thanks Adam <Some... please read here: http://www.wetwebmedia.com/xeniidcompfaqs.htm and the linked files above. Bob Fenner> Anemone vs. Xenia...Help! 2/20/07 My anemone relocated right next to my zennia. <Uh-oh.> It keeps taking the zennia <xenia> in its mouth and now some of the zennia branches are dropping of as they act like they have been strangled. <They are being attacked both physically and chemically.> I don't know how to move the anemone or the zennia.<xenia> <I would suggest searching WWM re fragging the xenia...it is my opinion that the anemone would be more difficult in forcefully removing the anemone (if it has "rooted"). Another option is relocating the entire rock to another "more undesirable" spot in the tank to encourage the anemone to move elsewhere. Unfortunately this is one of the possible outcomes when you mix moving cnidaria like anemones and sessile invertebrates.> please advise. thanks you <Adam J.> Xenia and Bubble death?? 1/27/07 Hello, <Greetings! GrahamT here.> I have had a 26 gal nano reef going for over a year now with a nice bubble coral, two types of hammer-heads, some green star polyps and a yellow star colony. A few days ago I bought a pulsating xenia (about four stalks attached to a rock) and now at day 3, some of my tank seems on the decline. The second day with the xenia, I noticed my large pink snail (no idea what type he is) was sucking on the bottom of one of the stalks. The next morning I awoke to that stalk completely gone and a neighboring stalk cut open and melting on the rock. The other two are thriving. It seems to me that snail probably did this, but that's not even the worst of the problems. Today I come home and my bubble coral (which is usually big and beautiful- never had a problem with it) is closed up tight and even seems to be retracting from its skeleton. The most disturbing thing was a hermit crab was on top of it ripping into its flesh. I was wondering if perhaps having the ripped open xenia in the tank still is causing my bubble to die, is that a possibility? <Not likely, no.> The rest of the tank seems to be doing fine, everything else is eating and acting as usual. The only other changes I made within the time frame of getting the xenia was lowering the water temp (I noticed it was a bit high when I added it, now its at 74 which is the usual) and we relocated the green star polyps. <74 is a bit low by my reckoning. I would go with 77-79, depending on how much your temp fluctuates during the light-on hours. > Any advise on this would be greatly appreciated! <Xeniids are (as a rule) passive, unpredictable specimens. People report their success on both ends of the spectrum - either they have so many, they want to get rid of them, or they can't keep any alive. I would firstly suspect the green star-polyp is using it hefty arsenal of chemical weaponry here to attack the Xenia. This might be hurting the bubble, too, given the small system volume, though I would be interested in the hermit crab's actions in this case also. GrahamT.> Thanks in advance, Alyssa Schladt Feather Dusters Choking Xenia ...or Xenia Choking Feather Duster? 1/9/07 Hi Bob, <Hi Tom! Mich with you today.> Love your website. Great information! <Thank you for the positive feedback!> I searched your site and google, but found no answer for this. I have what looks like Bispira variegata growing on a rock with Pumping (Pulsing) Xenia on it. I left it alone for the past 6-8 months since it was attractive and not bothering the xenia. It is now beginning to strangle the Xenia. It is squeezing the base of the coral and it may eventually pinch it off. How can I get the feather duster off without hurting the Xenia. <I would be more concerned about hurting the feather duster.> Can I remove it from the water and peel/pick them off? <I would not do this to the Bispira variegata.> Is it ok to touch the Xenia (someone told me once not to touch them because it will damage them. <Yes it's OK to touch the Xenia.> Another note, it seems that the Xenia is growing around the feather duster like a tree would grow around a wire. What should I do? A couple of ideas here Tom. As a generality, it seems that people are either unable to grow Xenia, or it becomes like a weed it there system. Many people have so much Xenia that they will give it away for next to nothing. For the most part, Xenia is relatively easily propagated. This is why I would be careful not to harm the Bispira variegata, which is not so easily propagated. If your Xenia is doing well in the system, it should be pretty hardy. My first suggestion to you would be to encourage the Xenia to move. I presume that the Bispira variegata and the Xenia are attached to a rock. If this is the case and if it is possible, the easiest thing to do would be to turn the rock so the Bispira variegata and the Xenia are facing away from the light. This will encourage the Xenia to move away from the Bispira variegata and grow towards the light. If this is not possible I would try fragging the Xenia. Either cutting the Xenia entirely away from the rock or removing just the part that concerns you. A last option is not to do anything and allow the Xenia and the Bispira variegata to reach their own understanding so long as neither is obviously loosing the battle, at which time it may be necessary to intervene. Thank you, <Welcome! -Mich> Tom About Xenia... dis.,
comp. 8/23/06 I having problems to keep any species of
xenia in my reef tank. I would like someone advanced aquarists to help
me solve the problem. I tried to keep a lots of different
species xenia but no one can success. Water quality? <Possibly>
Lighting? <Not likely> Water movement? <Could be>
Nutrients? PH? I do everything but did not see the result. Still cannot
keep xenia in my reef tank. My tank size:
36"x18"x18" with 15gallons sump with feather
Caulerpa filter with 24hrs daylight lighting. with Plenum and 4"
2mm sand bed. 20kg live rock in main tank.
equipments: 1 (Eheim) return pump 3396l/hr
2 (Seio) water movement pumps 2400/hr 1
(Aquanic) water movement pump 1500/hr 1 (AquaMedic) Skimmer
with pump 2500L/hr 1 280watts chiller
This is my tank water parameter:
PH -
8.3 Ammonia - 0mg/L
Nitrite - 0mg/L
Total Nitrate - 20mg/L <A bit high... would keep no more
than half this> Phosphate - 0mg/L
dKH -
11-12dKH salinity - 1.0235
<Better near 1.025> Temperature - 26.5C
Calcium - 450mg/L
Magnesium - 1300mg/L
* I use SeaChem Reef Plus twice a week to maintain the
iodine and trace element, and Kalkwasser to makeup water.
<Might be something in how you're
administering these last two> Lighting: 1
14k T5 1 Actinic T5 1
12k fluorescent (sera) 2 actinic fluorescents
(Acadia) Fishes: 1 yellow
tang 1 blue hippo tang 2 clown fish
3 green Chromis 1 sixline wrasse 1
flasher wrasse others: 2
cleaner shrimps 1 blue legged hermit crab
corals: LPSs: 1 open brain, 1 green galaxy.
soft coral : yellow polyps, different species buttons and
different types of mushrooms. <Very likely
allelopathy with these other cnidarians> Problem:
- every time i added new xenia into my tank the xenia not
open sometime will melted within 2days. - sometime the
xenia looks unhappy and dry look then slowly die off. -then
i tried to buy the established xenia from the LFS. the polyps open very
nice in the LFS established reef tank with only actinic light.
<Don't need actinic...> When i put it in my tank 1st day
still open but not like at the LFS. 2nd day the polyps open bigger then
1st day. 3rd and 4th day looks good polyps open nicely, but till 5th
day it looks unhappy the polyps looks dry again.....:( is no reason
every things is ok but only xenia. I really loves this coral but very
hard to keep :( why? why? why? - others coral in my tank
doing very well and spreading very fast like button. Maybe i got no
luck with xenia :( Steve xxxxx <Mmm...
I would try adding whatever Xeniid to a separate "go-between"
tank, with only partial water from your system, the rest all new...
adding some more tank water weekly... Please read on WWM re Pulsing
Corals: http://www.wetwebmedia.com/xeniidarts.htm and the linked
files above, as well as searching, reading re the terms mentioned
above. Bob Fenner> Xenia disappearance
8/11/06 Hi Crew, <Tom> Overnight, it looks like one of the
main stems of my month-old Xenia disappeared, leaving only an
attachment stub (that still has two very small new "sprouts"
showing). Although I see no obvious signs of a struggle, I
suspect foul play. <Could be...> Other tank residents include 2
Gobies, 3 Peppermint Shrimp (who did a remarkable job eating my
Aiptasia, over the 5 weeks I've had them in there), one Fireshrimp,
3 (supposedly) algae eating Hermit crabs, and one unidentified
hitchhiker crab, dime-sized or smaller. <... could be any of the
crustaceans... or...> For what it's worth, the tank has also had
a Sarcophyton for 9 months, and it has never had any problems. Thanks
for your thoughts, Tom <And there are situations in which pulsing
soft corals do "just fail"... sometimes quite rapidly. Please
read on WWM re the propensity (Compatibility) for each of the
crustaceans listed to get along, and here: http://www.wetwebmedia.com/xeniidarts.htm and the
linked files above for insight into captive Xeniid Behavior, Systems...
Bob Fenner>
Sea Urchins and Xenia 2/22/06 Dear Madam or Sir: <"Paperback writer..."> Thank you again for your assistance with my aquarium. After reading a few books, and pestering my local merchant, I recently purchased some Xenia. The folks at Norfolk, VA's Colley Avenue Corals (a new store, if I may give them a shameless plug) spent hours with me as I examined their tanks and asked questions about basic compatibility, temperature, lighting, water quality, etc. However, I never thought about inquiring about sea urchins. <Okay> I have three sea urchins in my 55-gallon tank. I believe they are either Echinometra lacunter (rock boring urchin - based upon the description and picture on your web site) or Echinometra mathaei (common urchin - based upon the location from which the live rock was collected). <Both common> They are about one-inch in diameter and appear as active during the day and night. The tank has been up about one year, and they are probably 50% larger than when I started cycling the water. At least two of the urchins seem fascinated with the Xenia. They appear to crawl right up to the stalk. It could be the rock has some algae on it, or it could be they see an enticing and expensive treat. <Mmm, possibly> I've tried to scoot the urchins away with a turkey baster, though this may upset the Xenia almost as much as being munched upon. One of your FAQs (around NOV 2004) the following note about a diadem sea urchins and Xenias, "I'd say he is running out of good algal food, and this is his next choice. I would feed him some Nori sheets...It may be a case where it is starving." Unfortunately, the fish (and urchins) ignored the Nori sheets I used to place in my tank. And I know the offenders are not diadem urchins. Negative reinforcement does not work well with our cat (or our children), <Nor me> so I don't hold too much faith in the turkey blaster training regimen. Assuming I want to keep the corals, should I look for a new home for the urchins? <Possibly... sorry for this apparent vagueness... it may be that the urchins will leave this pulsing soft coral alone... not actually eat it, but could cause problems with "poking"> Or are they simply looking for algae in all the wrong places? <Mostly this> Will these urchins grow too big for the tank, and therefore need to move to a classier neighborhood anyway, relieving me from this guilt? <Yes...> Thank you for your help. Sam <Thank you for writing. Bob Fenner>
Removing Xenia 8/19/05 Hi Crew, Greeting and salutations to all of you. <Greetings! Sorry for the slow reply. It looks like your message may have been lost. Thanks for re-sending!> My question to you is one of getting rid of every last bit of my white pulsing xenia. I've read on many excursion through your FAQs that harvesting over-grown xenia is the means of control for said softie. I've done as much on many occasions and have even located a local LFS that is willing to trade if I can culture it. At this point in time this is the least of my worries. It is everywhere in my tank and at all levels from top to bottom. It is even growing on and within the flutes of a couple of tridacnid clams. The latter is the biggest source of frustration because it makes it difficult, if not impossible to remove the rock to scrape off all xenia evidence. <Wow! Some aquarists would say that you have nothing to complain about! However, having had similar experience, I understand your frustration.> Do you know of any source that sells Xeniid crabs? I understand these are obligate xenia feeders and may be the answer I am looking for. I would rather deal with/find its' next home than deal with the eventual overgrowth in my tank. <You may try posting at www.reeffrontiers.com or www.reefcentral.com for someone who has stumbled on one, but I don't know of anyone who intentionally imports them.> Are there water parameters that I can "adjust" that make it a less than optimal environment for the xenia? Bob Jones <Perhaps so... xenia definitely prefers strong alkalinity and a pH in the range of 8.2-8.4. Unfortunately, lowering these may be to the detriment of your other corals. You may want to consider that some angels will eat xenia... Emperors and Blueface are probably most reliable. Ultimately, you may just have to harvest aggressively and scrub the bits of remaining tissue from the rock to prevent regrowth. Best Regards. AdamC.> Xenia problems 5/16/05 WWM Crew, Help! Sorry to email, I¹ve done a bit of browsing but nothing too serious. I¹m just in a bit of a panic about some Xenia¹s I have recently acquired (not aqua-cultured I¹m afraid and only a couple of days in the store, they were just too beautiful and I couldn¹t help myself). There were 3 stalks and 1 is doing fabulous. 1 however is quite sick and there is what I believe to be necrotic tissue in a couple spots and all the polyps are shrinking up. The last one looks healthy but there are a couple of these spots on the base now. They are placed fairly high up but seemed quite happy once I put them there. I¹ve only had them a couple of weeks. There are a few clove polyps near them (just a few small ones that started growing in that spot a few months ago-could this be the culprit?). Everything else in the tank seems healthy. <This is a common problem with imported xenia. They may look good for a few days, and then the stress of shipping and handling gets the best of them. I would suggest blasting away any loose necrotic tissue with a turkey baster occasionally and being sure that they are getting pretty brisk current.> I have a pH of 8.3, ammonia 0, nitrate and nitrite 0, alkalinity 3.5, 320 calcium (trying to raise with 10 ml does of bionic 2 part calcium alkalinity every other day), temp: 78F at night, 82F during the day (going to get an automatic fan), and a spec. grav. Of 1.023. <I would continue to try to work the Ca/Alk up to about 380-400/4.0 and the salinity up to about 1.025. You should be able to safely double or even triple your dose of B-Ionic until those values are optimized. Spreading the doses throughout the day will help prevent pH spikes.> I have a simple AquaClear filter (hope to upgrade sometime), ecosystem hang on the back refugium, a bak-pak2 skimmer, 288 watts of compact fluorescent lighting and a couple of powerheads too. I change 10% of the water every week and use purchased RO water (also for top-offs) with Tropic Marine mix. <This all sounds great!> Tankmates include: button polyps, purple colony polyps, clove polyps, starburst polyps, some coral mushroom anemones, a cleaner shrimp, tiger serpent star, sand goby, ocellaris, Midas blenny, a bunch of Nassarius snails, some Tonga, scarlet hermits, a big tuft of Halimeda and a ton of Caulerpa in the refugium. Sorry to bother you guys but you have been so helpful in the past! Any help would be greatly appreciated. Thanks in advance, John Kelley <None of your tankmates sound like a threat to xenia. There isn't much you can do but to optimize your water chemistry and hope that some of the xenia survives, and if it doesn't... don't lose hope! I have had wild xenia colonies appear to completely die, only to regrow weeks later, seemingly from nothing! Best Regards. AdamC.> White Crab Found in Xenia 4/2/05 Hello Crew. I thank you for being out there to provide such a valuable service. Now on to the question at hand. I purchased a beautiful Xenia colony yesterday (approximately the size of a baseball), which I brought home and placed in my 30 gallon quarantine tank after a 2 hour acclimation process. Shortly after placing the Xenia's base rock into position against another piece of live rock in the tank, I observed a white clawed crab, approximately 1.5" in width, inside of the colony. <Fascinating!> All of the polyp tentacles were contracted at this time, and this crab was actually taking the closed polyps and placing them in its mouth. It wasn't shearing the polyps with its claws, and it did not appear to be biting off the polyps. Interestingly, it almost appeared as though the crab was cleaning the polyps with its mouthparts. <Understood... many creatures feed off of the mucus> I became very excited, thinking that I lucked into a Xenia with a mutualistic relationship with a crab. H <You may still have it.> However, after searching your archives this morning, as well as my texts, I have been unable to find any indications of there being any known mutualistic relationships between Xenia and any species of crab. Based on the WWM archives, I would have to guess that this crab is a risk to my coral, and that I should start thinking about getting it out of the tank. <Perhaps not... I think you should leave it alone and just observe it in QT> What do you guys think? I looked a the Xenia carefully today, and it appears to be healthy, with polyps opening and closing frequently. <Indeed... you would see predation is if was there. There is not much coral there... if it's getting predated, it will get eaten fast> I could not find the crab in the colony, but I did notice that some polyps' tentacles were missing. I observed anywhere between one and four tentacles missing from those polyps observed to be incomplete, but I did not see any instances where all of a polyp's tentacles were missing, or the entire polyp severed. Should I be worried? <I'm just not sure... the missing polyps could be from shipping stress/mild infection/damage> I will try to trap the crab tonight and will hopefully get a picture out to you guys tomorrow. Thank you for your assistance. Lou <Best of luck, Anthony> Xenia stung by Frogspawn 3/14/05 Hi there! Thanks for the great help you provided me so far! I only have two simple questions. 1- Is there anything I can do to save a pulsing Xenia which was stung by a Frogspawn??? (Only one branch was stung) <strong water flow is key> 2- I'd like to know if the Coralife Aqualight Power Center is a good timer. (I'd really like to know. It's the only timer of this kind available around here and it's 75 $ CAN, so I don't want to get something that wouldn't do...) Thanks a lot!!! Ivan <I don't have personal use with the timer or know of anyone close that has. Better for you, do check the big message board "Reef Central" for a consensus on customer satisfaction. Anthony> Xenia eating snail? Or snail eating xenia? First off 40 gallon Temp: 78 pH: 8.5 KH: 8dKH Gravity: 1.024 Ammonia: 0 mg/L Nitrite: 0 mg/L Nitrate 5mg/L Phosphate: 0.25 mg/L Cu: 0 mg/L Ca: 400 mg/L My tank is almost 6 months old (Day 186) Thanks for the calcium help I have effectively reached 400 mg/L CA. I have a question about xenia. I have several Xenia pulsing away, I have had them for about 4 months. A couple of days ago I noticed one of the xenia kind of wilting and looking constricted as it sometimes does. Wondering I reached in to examine, on the other side of the small piece of LR in noticed a snail shell, completely covered in coralline algae (White flesh) that the xenia had attached to holding it fast. I did not purchase this snail and the xenia has been wilted on and off since I got it. I twisted the snail free and placed it a foot away from the xenia. A day past and I noticed that the wilted xenia was recovering but another stalk was withering. Looking I found that same snail right beside the withering stalk. My question is, "Are there snails that eat or attack xenia?" < Not that I knew of. But hey, maybe you found one. In this case I'd put the snail in a trap or remove it entirely and see what happens. > The snail's flesh is white, the shell is covered in coralline so I can't tell what it is naturally, any help is appreciated. < Well I think it would be fun to test this out. Keep the snail in separated from the Xenia for a few weeks, then put him back by the Xenia. See what happens. But this is really strange to me, as I've never heard of this happening. > Thank you, Troy < Blundell > -Xenia compatibility- Greetings: I've read several of the correspondences of people whose Xenias have suffered because of incompatibility with Mushrooms, Anemones, etc. Mostly the answer is just that it is an incompatible group. So I'm wondering what is compatible? <Anything, provided it does not touch the xenia.> If I want to keep the Xenias, do my mushrooms, star polyps, yellow polyps, brain coral and clove polyp have to go? <Absolutely not. Xenia is an EXTREMELY fast growing coral, and thankfully, does not possess the power to sting. As it tries to take over your tank it will be stopped by some of the more potent stinging corals in the tank. This isn't a problem, and is normal, you may want to remove the xenia that is being stung at that point and run some fresh carbon.> What does well with the mushrooms? <Most soft corals will not be stung by them noticeably.> What will work if I want to keep the Anemone and clown? <Since there are far too many compatible corals to list, i would suggest you purchase Eric Borneman's book Aquarium Corals for all the coral information you'll ever need. As a general rule for anemones, there's no problem unless they touch another coral (please, one anemone to a tank, unless it's a bubble tip anemone and its clones). I hope this is of some help! -Kevin> Thanks in advance. Xenia question 8/27/03 Hi Guys, Robert here <howdy> I need your expert opinion on a matter concerning Xenia's and a mentally ill clown. The Xenia has been in the tank for a while and is growing like a weed, it has been harassed by my percula clown since it has been in the aquarium, the clown rips the polyps of and spits them out somewhere else in the tank, and every time he does this it starts a colony somewhere else (and I thought that clowns are reef safe fish). <they generally are... but many are known to take residence in LPS corals like false-anemones and kill them... others nibble coral. Strange things happen in captivity... and Xenia are weakly noxious> This one has a personality problem and seems to hate any inverts, it is not just the xenia but he picks the hermit crabs up and drops them on the other side of the tank or he pushes them like a snow plough through the gravel leaving them shell shocked and even the green star polyps have felt the pain caused by this mentally ill clown. The only friend this clown has is the Green carpet anemone, that he cuddles up to. <ughh... how I dread to hear of anemones with corals. A bad long term mix for many reasons (do peruse the WWM FAQ archives on this subject)> Is this normal behaviour or did he loose one of the two brain cells he had during shipment. <I suspect she's just territorial> But this is not what I actually wanted to ask, My question is that the last two days I have seen the Xenia releasing what looks like small white eggs into the water and this is eagerly gulped up by the fish, I have no idea what this is, the pieces that are not eaten look sticky as they stick to the first thing it comes into contact with, Is this the Xenia trying to reproduce or is this some copepod or worm thingy, The "eggs" are about 2mm in length. <it could be reproduction... has been observed in aquaria> I am no Marine biologist but I have never seen this before. They seem to be coming from the base of the Xenia between the polyps. They also seem to all be gone and when I check there are more of them again, The look like they have a sticky thread attaching them to the base of the Xenia and as soon as they move upwards and pass the polyps this releases and the "egg drifts in the current until it finds something to attach to, I checked under a magnifying glass to see if they are not a small worm or something but they do not move and have no legs or anything suggesting that they are animals and not part of the Xenia Any comments would be appreciated as always. Regards Robert. <it sounds like a thriving and well manicured colony ;) Enjoy... and please do consider pulling the anemone and clown to a separate species tank sans corals. Anthony> Xenia Farm Awhile ago I wanted to have some Xenia
in my tank, now I think that was a big mistake. That stuff will not
stop spreading. Is there anything I can do about this? Even if I remove
it from the rock it just helps it seems. I would be open to just about
anything. Thanks, Robert Jones <run a simple 20 or 30 gallon QT tank
with a predatory angel (Pomacanthus) or hardy butterfly and train the
fish to eat xenia while in quarantine for 4 weeks. If it passes with
flying colors you may add it to the reef with caution. Some risk
involved here though. Best regards, Anthony> Reducing Xenia I have some pulsing xenia that are like weeds.....(please stop growing so fast) now there is way too many. How do I remove some---most----since they're attached to the rock?? p.s. the rocks are very large and difficult to remove Thanks again <the most effective method is to "skin" them from the rocks. A rock that can be removed will have a sharpened chisel taken to it. Placed at the base of the coral (not touching the tissue) you make a strike at angle which takes the coral off with only a sliver of carbonate base with it. For rocks submerged in the tank and too difficult to extract, you can use poultry scissors (the ones used in the kitchen for cutting through chicken bone, etc). They are stainless steel and can work nicely just the same. With these scissors, snip hard at the carbonate base just in front of the coral and take the specimen off the rock without cutting the tissue. All of these efforts to avoid cutting tissue are to prevent the propagation of it. If you scraped the coral or left any behind, it will simply regrow... even from a small amount of tissue. Please don't waste this coral either... find a local pet store, aquarist or aquarium society that can take and use this precious resource... a living creature not to be discarded for its success in your aquarium. Best regards, Anthony> Joe Grunstad Pulsing Xenia <Cheers from America> I have just bought my first pulsing Xenia. <a very beautiful coral> It resides in a tank that is 18 months old. I have various species of coral, including Sarcophyton, bubble coral, trumpet coral, Euphyllia, mushrooms and Green star polyps. <an interesting and aggressive (chemically noxious) group. The Starpolyps and mushrooms believe it or not are some of the most aggressive corals to be found... despite their lack of sweeper tentacles. Instead they shed considerable inhibiting elements in the water. As will all coral though, temper this with good water quality, weekly water changes, daily use of carbon and good protein skimming of course> I have placed the Xenia (knowing how delicate it can be) away from my bubble coral and my creeping finger coral, and my Euphyllia for obvious reasons. <agreed. Their aggression is quite plainly obvious with sweeper tentacles> My water parameters are the following PH 8.4/8.5 (daytime & evening, not dark) DKH 8.4 Calcium 410 Magnesium 1300 Phosphate 0 Nitrate 20 ppm <all quite fine> Lighting is with 3 60" marine whites (HO bulbs) and 1 60" actinic 03. <if the tank is less than 60 cm deep, the lighting is fine> Water changes of around 12% are done weekly. I use carbon, Rowaphos and poly filters regularly. I dose with aqua-medic strontium and iodine weekly also. <outstanding!> Reading your FAQ's I see depressed PH can be a problem at night for Xenia, they do close up at night (natural I assume) but still pulse closed up if you see what I mean. <understood and agreed> My tank always floats between 8.4 and 8.5 PH, I hope this is sufficient for xenia. <quite excellent> My question is this. Will the Xenia suffer being placed next to my trumpet coral, <yes...likely, but it may fare as well or better next to the leather as it is. Xenia has one of those uncommon relationships whereby they seem to have a commensal relationship (one benefits (Xenia) from the products and proximity of the other, while the other (Sarcophyton) may not benefit or be harmed)> and also in such close proximity to a trimmed Sarcophyton coral as in the picture. All the stalks pulse and are being buffeted gently via a powerhead within the live rock and my main system pump. However as you will notice in the picture one stalk set just lollops down on the side of the rock and fails to pulse in the evening (when lights are going off). <lack of current and light here too. May be that simple> It still pulses in the day when all the lights are on, am I to be concerned by this? <not at all> the Xenia is my first advanced soft coral as such, so any advice would be appreciated. Best regards Jim Griffin <no worries, my friend.. all sounds quite fine. You seem well read too. I have great faith your tank is beautiful and will continue to be. Keep learning, sharing and growing :) Anthony Calfo> The benefits of Sarcophyton and pulsating Xenia Hey guys( and gal(s)), My question is for Mr. Calfo. Mr. Calfo, according to your book it has been observed that pulsating Xenia do better when housed with a Sarcophyton. Do you have any more information on this phenomenon? <all anecdotal... not any/much scientific research on this or any aspect of commercial coral culture> Is one type of Sarcophyton better for this purpose than another? <not sure... my experience with Xenia and "leathers" has been favorable with many Alcyoniids though> On an unrelated note, does anyone know if mangroves are legal to buy in California? <I do not believe you are restricted but cannot confirm. I have seen many mangroves in aquarists tanks in Cali though... do pose this question to some of the societies (hopefully you will join some of these clubs <G>). Try SDMAS, MASLAC, Seabay, etc> I emailed the department of agriculture as well as fish and game and have not received a response. Thank you for your trouble, -Cory <best regards, Anthony> Killing Xenia I'm having problems trying to kill Xenia sp. around my SPS's. I've tried hot water injections, cold, Kalkwasser, I've even tried injecting vinegar but to avail. Is there anything that will kill them safely? Brett L. <It is going to be far easier to manually remove them. Take a pair of diagonal wire cutters, that are clean and free of oil, and use them to take out a little bit of the rock under the offending Xenia. Be sure to thoroughly clean the cutters afterward, but be warned they will probably rust something awful. -Steven Pro> Removing Xenia To be honest... I agree with Steve. Diagonal pliers and poultry sheers are the best and most direct method. What we are suggesting to do is bit into the rock just below the Xenia to skin some rock away with the living animal. They cannot possibly grow back if you succeed in doing this... the very 1/16" of rock below the xenia is being removed! The wire brush though does leave bits of tissue which can regrow. Anthony> Mushroom and Xenia I have this Xenia that is moving off one rock and on to another rock that has some mushrooms. Is there going to be a problem if they contact each other? <yep... the mushrooms may eventually kill the Xenia. They are quite hostile and the Xenia is rather passive> If so what are my options? Thanks for the help <place loose rubble between the two so that is one should grow nearer in the face of an attack, the "firewall" with coral on it can be removed and replaced. Best regards, Anthony> Xenia's and tank inhabitants Hey Bob Just found your web
paged and spent have the night reading through a lot of the questions
and answers pages. I have sent in several questions to you before thru
F.F.E. and really learned a lot from you. <With me, my friend> I
have been running for almost 3 years now and am very happy with the
system I have finally put together a 105 gallon oceanic show tank with
a 25 gallon sump not wet-dry). Moderately skimmed thru a marketed
oceanic skimmer. My xenia's are growing great(2-varieties) tree
xenias and pom-pom one type at each end of the tank. They are growing
and spreading great. I started out with one of each and have raised
more than hundreds of each type. Sometimes I will put shells, pvc pipe
which my Gramma enjoys for a short time), and some of the older
aquariums parts in with the xenia's just to watch it spread. I do
take a lot of the xenia's into local pet stores for trade and sell.
Wow what a hobby!!!! <Indeed> Some of the things that I have
noticed with my animals: 1. Blistering on the sides near the base: I
noticed if they get thick and nothing close to attach to they literally
will start producing another foot they can eventually reach solid
ground with and split off. Sometime when I notice this happening I will
put something close to it and PRESTO a whole new animal. <Yes> 2.
Twisting its head. Sometimes their heads will get twisted in the
current and completely twist off. Believe it or not but where the head
ends up resting it will grow out into it's own colony.
Unfortunately this means they have ended up all over the tank including
on the glass, on top of power heads, and end the bottom of the external
over flow. In every circumstance I have gotten them after they reach a
few inches in size and took them to the LFS for $20. <Great> 3.
As far a controlling where they go in the tank: I have utilized
stinging cell corals to control that out ling boundaries with a
Elegance, torches, and Etc. <A worthwhile practice, strategy> 4.
Knobby starfish loves xenias!!!!!!!!!!!!!! Enough bragging Now for a
few questions 1. Is there any way to control the star polyp type
gorgonian? I have tried the torches and other corals to line out its
boundaries but it grows right up their shafts and then around it looks
like a neat combo but it is still tanking over the tank. <Best to
keep this curtailed by isolating material it can spread to, staying
diligent about removing it from where you don't want it> 2. I
want to add either a flame angel or a Scott's fairy wrasse to my
set up Problem is I have heard the angel likes to eat at soft corals.
and I know nothing about the Scott's fairy wrasse. <The latter
much less likely to experimentally chew... but both should be okay>
3. Is their any good way to ship xenia's. <Not really... best
sold locally...> I would love to get in good with FFE and other as
far as trade offs, ETC. Kevin Johnson Thanks a whole lot. I'll send
you some pictures of the tank later. <Be chatting my friend. Bob
Fenner> |
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